Automatic vehicle-stopping device.



PATENTED JULY 14, 1908.

B. DE HALMY. AUTOMATIC VEHICLE STOPPING DEVICE.

APPLICATION FILED NOV. 8, 1907.

FIG-J3- Zaire/afar;

min/asses,

.etc., and automatically sto BELA DE HALMY, OF DIOS-GYOR,AUSTRIA-HUNGARY.

AUTOMATIC VEHICLE-STOPPING DEVICE.

Specification of Letters Patent.

Patented July 14, 1908.

Application filed November 8, 1907. Serial No. 401,340.

To all whom it may concern."

Be it known that I, BELA DE HALMY, a citizen of the Kingdom of Hungary,and residing at Dios-Gyor, Austria-Hungary, have invented certain newand useful Improvements in Automatic Vehicle Sto in Devices, of whichthe following is a filil, c lear, and exact description.

This invention relates to a device which may be arranged on all kinds ofvehicles, e. g. locomotives, electrically driven carriages s the vehicleif the same collides with anyo stacle or human beings, animals or thelike or if the Switches are not in the right position (half position).

The essence of the invention consists in a plate or fender which is somovably arranged at the front of an engine or other vehicle that when itcollides with an obstacle wedgeshaped shoes or blocks are released whichfall on to the rails in front of the wheels. The wheels run 11 theascending inclined surfaces of the bloc s and raise the vehicle so thatthe coupled wheels run idly in the air and no longer articipate in thepropulsion of the vehicle. .he blocks or shoes arranged in front of thewheels are generally suspended at a suitable distance above the rails bymeans of rods connected with the push plate (or net) and are onlyreleased and dropped on to the rails if the plate is moved by itscollision with an obstacle and releases the blocks by moving the rodsconnected with the late.

In en ines which are provi ed with air brakes the blocks are bestconnected with the piston rods of the brake cylinder which hold the blocs in the raised position while the vehicle is n motion, and oncommencement of the braking action the blocks are dropped on to therails. The push plate (or net) is connected in this case with a cook orvalve of the air conduit in such a manner that on the collision of theplate with an obstacle and the consequent actuation of same, this valveor cock is opened and consequently the cylinder istons are moved in sucha manner that the blocks fall on to the rails andso raise the en- 'newhereby the air brake is simultaneously switch is quite open, while ifthe fall on to the rails.

The drawing shows the subject matter of the invention as applied to anengine provided with a vacuum air brake. It is however obvious that thedevice cannot only be applied in the manner illustrated and only tolocomotives but the same may be used for all kinds of vehicles and thevarious parts of the same may be modified in many respects withoutaltering the real essence of the invention.

In the accompanying drawin s Figure 1 is a side view of an engineprovide with the device, Fig. 2 is a plan view, Fig. 3 [the crosssection of the main rail and the sliding rail of the switch, Fig. 4 isone form of construction of the block suspension.

According to the form of construction illustrated the plate (ornet) atis held in a vertical position in front of the vehicle by means ofsprings 0 so that the plate, should it come into contact with anobstacle or collide with an engine comin in an opposite direction, mayeasily rece e or yield. The cook or valve 6 is arranged in a pipe d ofthe vacuum air brake and is connected with the plate a by means of rodsf. The cylinders g are connected up in a known manner to the pipe (1,containing communication with the vacuum chamber of the vacuum air brakeand the rods 71. are fastened to the c linder pistons, the rods carryattheir ower ends the already men-- tioned blocks 7c in front of thewheels. These, blocks are preferably wedge shaped as shown so that thewheels may easily run up the inclined surfaces. The blocks are connectedwith the rode it by means of pivots 6.

rarefied air since it is m.

actuated and so also cooperates in stopping the train.

In locomotives or vehicles which have only coupled wheels the latter runup the blocks, or a roller runnin on the rails is arranged in front ofthese w eels, which roller on col- 55 lisions or the like runs on thefalling blocks.

arranged on the latter, which ivots engage 05 in the longitudinal slots1 of t e blocks and slide in these slots when the wheels mount theblocks or on movement of the wheels. The blocks are arranged on eitherside of the vehicle and the blocks belonging to the same 1 pair of'wheels may be connected with each other by a cross rod, as shown. Inorder to also obtainv a movement of the plate a if the sliding rail isadjusted in such a manner that the tongue does not .come to lie closelyagainstthe. main rail, two arms I) directed downwards are arranged onthe plate, which arms are at such a distance from theinner side edges ofthe rails that if the points are correctly adjusted, viz: If the'tonguen (Fig. 3) lies against the main rail m or if the tongue is quite 0 enin the position n the same may pass by t e tongue or between the mainrail and sliding rail unimpeded, while if the tongue is in anintermediate osition n the arms come into contact with t e tongue and bymoving the plate a stop the vehicle.

According to the form of construction shown in Fig. 4 the lower end ofthe carrying rod of the block is hook-shaped to engage with a shackle orthe like on the pivot i so that the sup orting rod consists in this caseof two mova 1y connected parts and sois less subject to breakage, as thepivot i owing to the yielding power of the rod can move easily inslot 1. I

The mode of action of the device may easily be understood from theabove. As soon as the plate 0. comes into contact with an obstacle orcollides with a train coming in the opposite direction, it yieldsagainst the action of the spring 0 and opens the cook or valve 6 of theair p1pe d, the said pipe (1 normally containing rarefied air since thelower face of the piston in the cylinder 9. is exposed to atmosphericpressure. The cylinder being in communication with the outer air at thelower end of the cylinder, the said piston will be forced upward to theupper end of the cylinder. The pistons of the cylinders 9 generally keepthe blocks k raised while the train is in motion, when however applyingthe brakes or whenopeningthe cock e the outer air is admitted into thecylinder, g, above the piston whereby equilibrium is established etweenthe pressure onthe upper and lower faces of the piston whereby they aredisplaced in such a manner that the blocks are dro ped on the rails infront of the wheels. Alt ou h at the same time the brake 0 of the couplewheels comes into action the vehicle runs on owing to its vis m'va andruns up the ascendinginclined-surfaces of the blocks lye ing on therails and is so raised into the air. The blocks do not move on the railsat all or only to a slight extent While the vehicle is mounting thesame, for the blocks are tightly pressed against the rails owing to thewei ht of the vehicle. Consequently the ivots '1, of the supporting rodsit will move orward in the slots 1 of the blocks. If the sliding rail isin an intermediate position the movement of the plate and the stop ingof the train are effected in the describe manner b the tongue n when inthe intermediate position (Fig. 3)

against whichthe one or the other of the arms 1) arranged oh the plateand directed downwards strikes.

In vehicles without air brakes the blocks 70.

are suitably'kept in the raised position by means of spring hooks or thelike,which are connected with the plate and when the latter is displacedare released so as to drop the blocks.

The device described may naturally not only be applied to the engine,but also'to some or all the carriages of the train in which case thewhole of the train is raised up shaped block arranged above the rails infront of a wheel of the vehicle, in combination, with a cylinder, theupper part of which 7 is connected with the vacuum chamber, a cock forcontrolling the. communication of the said cylinder with the vacuumchamber, a piston Withinsaid cylinder and connected to the wedge-shapeddevice for operating said cock arrange on the vehicle to strike anobstacle interposed in the path of the said vehicle.

2. In a device for stopping vehicles, a wedge-shaped block arranged infront of a wheel of the vehicle, a cylinder and a piston inthe same, andmeans for suspending the wedge-shaped block connected with said piston,in combination with means for increasing the pressure on one face of thepiston when the vehicle collides with an obstacle;

3. In a device for'stopping vehicles, a wedge-sha ed block arranged infront of a wheel of the vehicle, a cylinder and a piston in the same,and a rod depending from said piston and connected to the wedge-shapedblock, the cylinder beingin communication with the atmosphere at thebottom and in communication with a vacuum chamber at its upper end, incombination with means for simultaneously cutting off said communicationwith a vacuum and establishing communication with the atmosphere, and atripper adapted to operate said means on collision with an obstacle.

4. In a device for stop ing vehicles, wedge-she. ed blocks suspen ed, bymeans of rods in ont of the wheels above the rails, said rods beingprovided at their lower ends with ivots engagin in 1011 itudinal slotsof the b ocks which fal on to t e rails when the vehicle collides withan obstacle.

5. In a device for stopping vehicles with air brakes, wedge-shapedblockssuspended on the piston rods of the brake cylinders and carried in frontof the wheels above the rails,

said blocks falling on to the rails when the air conduit is opened.

6. In a device for stopping vehicles, movably suspended arms directeddownwards at the front end of the vehicle and lying in the track of thesliding switch tongues if incorrectly set, said arms being connectedwith blocks which fall on to the rails in front of the wheelswhen thearms collide with the tongues.

7. In a device for stopping vehicles, a plate movably suspended at thefront end of the vehicle and provided with arms directed downwards, thelower ends of said arms lying in the track of the sliding switch tonguesif incorrectly set, and the plate being connected with blocks which fallon to the rails in front of the wheels when the plate collides with anobstacle or the depending arms strike againstthe tongues.

8. In a device for stoppin vehicles with air brakes, the combination 0wedge-shaped blocks suspended on the piston rods of the i brakecylinders in front of the wheels, a late movably supported at the frontend 0 the vehicle, and means to connect the plate with a cock of the airconduit so as to open the latter upon displacement of the plate and todrop the blocks on to the rails simultaneously with the application ofthe brakes.

9. In a device for stopping vehicles with air brakes, the combination ofwedge-shaped blocks suspended on the piston rods of the brake cylindersin front of the wheels, a plate mova'bly su ported at the front end ofthe vehicle an provided with downward directed arms arrangedin the trackof the sliding switch tongues if incorrectly set, and

means to connect the plate with a cock of the air conduit so as to openthe latter upon striking of the arms against the tongues and to drop theblocks on to the rails simultaneously with the application of thebrakes.

In witness whereof'l have hereunto set my hand in presence of twowitnesses.

BELA DE HALMY. Witnesses:

HENRY FENYo, LESLIE ALsAsz.

